#include <iostream>
#include <string>
#include <cstring>
#include <cstdlib>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "Comm.hpp"
using namespace std;
void Usage(const std::string &process)
{
    std::cout << "Usage: " << process << " server_ip server_port" << std::endl;
}
int main(int argc, char *argv[])
{
    if (argc != 3)
    {
        Usage(argv[0]);
        return 1;
    }
    std::string serverip = argv[1];
    uint16_t serverport = stoi(argv[2]);
    int sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if (sockfd < 0)
    {
        cerr << "socket error" << endl;
        return 1;
    }
    struct sockaddr_in server;
    memset(&server, 0, sizeof(server));
    server.sin_family = AF_INET;
    server.sin_port = htons(serverport);
    inet_pton(AF_INET, serverip.c_str(), &server.sin_addr); 
    int n = connect(sockfd, CONV(&server), sizeof(server)); 
    if (n < 0)
    {
        cerr << "connect error" << endl;
        return 2;
    }
    while (true)
    {
        string inbuffer;
        cout << "Please Enter# ";
        getline(cin, inbuffer);
        ssize_t n = write(sockfd, inbuffer.c_str(), inbuffer.size());
        if (n > 0)
        {
            char buffer[1024];
            ssize_t m = read(sockfd, buffer, sizeof(buffer) - 1);
            if (m > 0)
            {
                buffer[m] = 0;
                cout << "get a echo messsge -> " << buffer << endl;
            }
            else if (m == 0 || m < 0)
            {
                break;
            }
        }
        else
        {
            break;
        }
    }
    close(sockfd);
    return 0;
}